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Article | REF: BM6017 V1

Hydraulic fluids - Analysis methods

Author: Gérard DALLEMAGNE

Publication date: October 10, 2003

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2. Viscosity

2.1 Dynamic viscosity

Dynamic viscosity [23][29] is measured using coaxial cylinder viscometers (figure 2 ). The prototype was the Couette viscometer. The gap between the two cylinders is filled with fluid. One of the cylinders is set in motion. The other is stationary. The test temperature is regulated to the desired value.

Measurements are carried out by applying a constant torques

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